MCQ Practice Question

In FM receivers, a limiter stage is used primarily to?

  • ARemove unwanted amplitude variations before frequency detection
  • BIncrease AM modulation index
  • CGenerate PCM codes
  • DReduce IF to zero in every design
Report an error
Correct Answer: A. Remove unwanted amplitude variations before frequency detection
Explanation: Since ideal FM information is carried in frequency, amplitude variations caused by noise can be clipped or limited before demodulation.
Reference: Standard communication systems: fm receivers